Why doesn't light go faster than it does?

Meatbot · Mar 10, 2008

If it has no mass, what stops it from going arbitrarily fast? Why doesn't it have infinite speed?

Shaun Culver · Mar 10, 2008

Permittivity & permeability properties determine e.m. wave speed.

CaptainQuasar · Mar 10, 2008

Check out [post=1556816]this excellent post[/post] on the subject by rbj.

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nicksauce · Mar 10, 2008

Try writing down a wave equation where the speed of propagation is infinite :p

nandan · Mar 14, 2008

light is a special case .no mater what speed of light cannot be more than what it is.its a relativity concept.

CaptainQuasar · Mar 15, 2008

nandan said:

light is a special case .no mater what speed of light cannot be more than what it is.its a relativity concept.

Actually, it's not just light - as rbj points out in the post I linked to E&M, gravity, nuclear interactions, etc. all travel at the speed of light.

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